自由设定用户权限上传，下载，文件属性，压缩，解压缩，邮件发送等 可设定用户使用空间大小 开启，关闭注册 风格自由更换 更多功能请自行发现 -free to set up user rights upload, download, file attributes, compression, decompression Send mail users can be set, such as the use of open space size, style free regist

虚拟磁盘程序，可以在电脑上加载一个虚拟的磁盘，可以格式化，可以设置大小-Virtual disk program, you can load on the computer a virtual disk can be formatted, you can set the size of the